HomeKeep vs ていれどき
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HomeKeep
Read full descriptionHide full description
Forgot to replace your AC or water filter? HomeKeep is a free app that tracks your home appliance filter replacement cycles and reminds you before they're due. ■ Solves these problems - Forgetting to replace AC or air purifier filters - Not remembering when you last changed the water cartridge - Too many appliance filters to keep track of - Realizing you haven't replaced a filter in months ■ Features [Manage filters by appliance] Air conditioner, air purifier, water purifier, humidifier, range hood, refrigerator, dishwasher, vacuum and more. Just pick a category and the recommended replacement cycle is set automatically. [Sorted by what's due next] Your filters are listed by replacement date, so you always know how many days are left. [Replacement reminders] Get notified 7 days before and on the day a filter is due. [One-tap logging] Mark a filter replaced with a single tap, and the next due date is set automatically. [Save photos, model numbers & purchase links] Register a photo and model number, then reorder the exact same part in one tap. [Home screen widget] See the filter due for replacement next, right on your home screen. [Seasonal maintenance] Keep your home in shape with seasonal checklists — clean the gutters, replace smoke detector batteries, and more. ■ Great for - Anyone who uses air conditioners or air purifiers - Water purifier and water server users - Families with allergies or young children who care about air and water quality - People who want their appliances to last ■ Pricing [Free] - Up to 3 filters - Replacement reminders - Widget [Premium] - Unlimited filters - Save model numbers & purchase links - Seasonal maintenance - Ad-free Clean air and water start with the filter. Never miss a replacement with HomeKeep. ■ Links - Support: https://tsuzukit.com/contact/ - Terms of Use: https://tsuzukit.com/legal/terms-of-service.html - Privacy Policy: https://tsuzukit.com/legal/privacy-policy.html
ていれどき
Read full descriptionHide full description
洗濯機がエラーを出した夜。 説明書、どこにしまったっけ。 分厚い冊子を引き出しから探して、 やっと見つけたページは、たった1行のことでした。 ていれどきは、家電の説明書をスマホに入れておくアプリです。 お手入れの時期も、そっと教えてくれます。 ■ 説明書は、探して、押すだけ 型番で検索して、メーカーのPDFを開く。 「保存する」を押せば、その家電の説明書になります。 紙の説明書は写真で。Webのページはリンクで。 ■ 中身を検索できる 「エラー H21」「フィルター」 知りたい言葉を入れると、そのページに飛びます。 もくじ、しおり、前回の続きから。 分厚い冊子をめくる時間が、なくなります。 ■ お手入れの時期を、通知で フィルター掃除は2週間ごと。槽洗浄は1ヶ月ごと。 家電ごとの定番はプリセットで用意してあります。 予定の日に通知が届き、忘れても3日後と7日後にもう一度だけ。 完了を押せば、次の予定は自動で決まります。 ■ 通知から、やり方のページへ 「槽洗浄の時期です」の通知が来たら、本のマークを押す。 そのやり方が書いてあるページが、そのまま開きます。 ■ 登録は型番シールを撮るだけ 家電に貼ってあるシールを撮ると、メーカーと型番が入ります。 手元の写真からも選べます。 ■ 端末の中だけで動きます アカウント登録はいりません。 広告も、アクセス解析もありません。 撮った写真が外に送られることもありません。 説明書を探す時間がなくなると、 家電のお手入れは、少しだけ気軽になります。 その分の時間は、お茶でも。
Screenshots
Verdict
The clearest difference is in-app purchases: ていれどき at none against HomeKeep's 2. ていれどき also leads on ads (none vs shown) and update cadence (fortnightly vs every 2 months). On price, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. HomeKeep sells 2 in-app purchases, starting at $0.99 per 7 days. ていれどき asks for nothing beyond the download.
HomeKeep ships an update every 2 months, ていれどき fortnightly. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.
| Parameter | HomeKeep | ていれどき |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 7 MB | 10 MB |
| Age rating | 12+ | 4+ |
| Developer | Ryo Tsudukihashi | Takaharu Hagiwara |
In-app purchases
HomeKeep
- HomeKeep Premium (Weekly)$0.997 Days
- HomeKeep Premium (Lifetime)$19.99
ていれどき
No in-app purchases









